RSQ 240 Series - HYDAC · 2016-04-20 · RSQ 240 is a sectional, parallel circuit valve, designed for system pressures up to 350 bar and pump ﬂ ows up to 140 l/min. It is available

MOBILE DIRECTIONAL CONTROL VALVES

HYDAC TECHNOLOGY CORPORATION Mobile Hydraulic Division

1660 Enterprise Parkway • Suite E Wooster, OH 44691

+1.610.266.0100 ext 1902

Summary of North American Offering INLETS (Schematics per data sheets except SAE ports) Type I11D in SAE . . . . . . . . . . . . . P1, T1 (SAE-12), PPM (SAE-4)

Type I21A in SAE . . . . . . T1 (SAE-16), P1 (SAE-12), P2 (SAE-10) Type I21B in SAE . . . . . . T1 (SAE-16), P1 (SAE-12), P2 (SAE-10)

WORKING SECTIONS (Schematic per data sheets except SAE ports) Type S11B, S11C in SAE . . . . . . . . . . . . . . . . . . . . .A, B (SAE-10)

OUTLETS (Schematic per data sheets except SAE ports) Type U21A in SAE . . . . . . . . . . . . . . . . .T2 (SAE-16), T4 (SAE-10)

Type U21B in SAE . . .T2 (SAE-16), T3, PPM (SAE-8), T4 (SAE-10)

INTERMEDIATE OUTLET (Schematic per data sheets except SAE ports) Type U21C in SAE . . . . . T2 (SAE-16), PPM (SAE-8), T4 (SAE-10)

Spools Most Available Type 112,114,116,119, 219, 412, 414, 416, 419, 314

Spool Controls Most Available Hydraulic pilot, manual lever, electro-hydraulic (EHP),

electrical on/off

Other options available (check with factory for leadtimes)

RSQ 240 SeriesDirectional Control Valve

2

RSQ

240

Solutions that power your visions

Make use of the Nordhydraulic expertiseOur skilled and experienced design and application engineers are at your disposal, helping you to specify the valve confi guration that meets your application requirements.

With the RSQ 240 Nordhydraulic is pioneering the de-velopment of open centre valve designs with a unique, patented, product.

Key valve featuresRSQ 240 is a sectional, parallel circuit valve, designed for system pressures up to 350 bar and pump fl ows up to 140 l/min.

It is available with 1 to 10 working sections per valve assembly.

RSQ 240 is designed with an open centre for fi xed and variable displacement pumps.

RSQ 240 is characterised by the unique dual fl ow range possibility and its ability to facilitate simultan-eous operation of several functions.

It is available with electro-hydraulic or hydraulic proportional remote control, but the valve can also be manually operated.

The electro-hydraulic proportional version in par-ticular off ers compact design with internal pilot oil supply, solenoids integrated in the valve body and integral hand levers for manual override/manual operation.

The valve off ers excellent operating characteristics because of the specially designed spools for diff erent applications.

Low and uniform spool forces are the result of careful balancing of the fl ow forces.

Q-functionThe fl ow control (Q-function) of the inlet section by-passes the major part of the pump fl ow to tank when the system is idling, thereby greatly reducing heat ge-neration. But it also gives access to the full pump fl ow when the services are operated and provide improved operating characteristics.

Q-function, in combination with the dual parallel gallery functional principle unique for RSQ 240, and separate fl ow regulation in each working section, gives this valve a very high performance level.

ApplicationsThe RSQ is ideal for applications such as truck cranes, backhoe-loaders, excavators, drilling rigs, telescopic

load handlers, sky-lift s, refuse vehicles and fork lift trucks.

Remote controlThe RSQ 240 is designed with an integrated pilot supply system in order to achieve an easy installation and a reliable remote control function. It is also pos-sible (and in some cases to prefer) to supply the pilot system externally.

Further RSQ 240 properties and possibilities• Complete fl ow regulation control. At reduced fl ow the entire spool (lever) resolution is maintained.

• Raised working pressure level in low fl ow mode al-lowing increased pay-loads, for example in cranes.

• Separate adjustable fl ow limitation in each section, independent of pump fl ow.

• A wide choice of spools and spool controls for dif-ferent fl ow combinations and for several applications and systems.

• A full range of service port valves.

• Load check valves in each working section.

• Spool actuators for external kick-out and spool posi-tion sensing.

• L. h. and r. h. inlet confi gurations are available.

• Intermediate outlet section for dual circuit systems.

• Easily convertible for systems with variable pump.

• Manual versions easily convertible to remote control.

• Pressure relief valve for downstream services.

• Electrical unloading.

• Regenerative function.

• Possibility of high pressure carry-over.

Data sheetThis data sheet presents a selection of standard com-ponents and how to specify these in a valve assembly according to your application requirements. For further information on RSQ 240 and available components, please contact Nordhydraulic.

RSQ

240

3


Table of contents Dimensions, weight ........................................page 4, 6 - 7Technical data .................................................page 5Inlet sections ....................................................page 7 - 8Working sections .............................................page 9Outlet sections ................................................page 10 - 11El. unloading, two speed control ..................page 12Spool controls, Lever ......................................page 13Solenoid valve EHP ........................................page 14Spools................................................................page 15Relief valves .....................................................page 16 - 18Miscellaneous ..................................................page 19Hydraulic diagrams ........................................page 20

Inlet

El. unloading valve

Two speed control valve

Main relief valve

High pressure carry-overTie rod

Solenoid valve for EHP

Outlet

4

RSQ

240


LA

LB

Pressures / fl owMax. system pressure* .................. .............. .350 bar (35,0 MPa) Max. continuous return line pressure .............. 20 bar (2,0 MPa) Max return line pressure, pilot oil circuit ...........5 bar (0,5 MPa)Rated pump fl ow** ................................................... 120 l/minMax. recommended fl ow per section ......................... 100 l/min

* Depending on application** Pump fl ows above 100 l/min may require metering check valve MF24 in working sections

Further dataSpring force for spool control 901 in neutral position: 110 N (11,0 kp).

Spring force for spool control 901 with fully selected spool: 130 N (13,0 kp).

Recommended contamination level at normal duty: equal to or better than 18/14 as per ISO 4406.

At high system pressure and/or for remote control: equal to or better than 17/13 as per ISO 4406.

Hydraulic fl uid viscosity range: 10-400 mm2/s (cSt). Higher viscosity allowed at start up.

Mineral oil and synthetic oil based on mineral oil are recommended.

Max hydraulic fl uid temperature range for continuous operation: -15°C - +80°C.

Spool leakage at 100 bar, 32 cSt and 40°C: < 13 cm3/min.

Att ention:To ensure proper function of remote control systems it is very important that the acceptable level of contamination is not exceeded.

Technical data - weight - dimensions

Inlet section

Weight kg

I11D 8,2

I21A 6,2

I21B 6,1

Working section

Weight kg

S11B 5,6

S11C 5,5

Outlet section

Weight kg

U21A 6,0

U21B 5,9

U21C 5,8

Weight

Type LA mm

LB mm

901 27

1001 64

1101 64

HP04 32

HP02 70

L61 87

L64 91

HL61 87

HL64 96

LE11 85

M01 38

MP03 70

MH02 57

MH03 57

Dimensions, spool controls

RSQ

240

5


4

0

8

0

2

6

100

l/min

P (bar)

9080705040302010

20

18

16

14

12

10

Q 14013012011060

110 130 140100 120

P (bar)

l/minQ

8

20

0 40

4

8030

16

14

90600

12

70

2

18

5010

10

6

20

110 140120 130100

P (bar)

14

8

30 400 60

2

90

16

80

12

0

10

4

70

20

10 5020

6

18

Q l/min

14

6

8

16

18

20

0

10

4

02010

12

2

30 40 50 60 70 80

P (bar)

l/minQ

10090

140100 130120110

P (bar)

Q

14

2

30

8

400

l/min

80

16

90

4

12

100

6

60 70

18

20

50

10

20

120 140130110100

P (bar)

Q l/min

0

2

8030

8

40

16

6010 900

14

12

10

70

4

20

18

6

20 50

110 140130100

P (bar)

12010 60

4

7020

12

14

90

20

50

6

10

18

0

Q 30 40

8

0

l/min

80

2

16

P (bar)

1003010

18

90

14

80

10

12

400

l/min

70

20

500

20Q

8

2

16

4

60

6

Technical data

Pressure drop el. unloaded, with PF505, FK501

Pressure drop el. unloaded, with PF507, FK502

Pressure drop El. unloaded, with PF511, FK505

Pressure drop P - T (idling), with PF505, FK501



10 working sections1 working section




10 working sections

1 working section

10 working sections

1 working section

10 working sections

1 working section


Oil temperature/viscosity for all graphs: + 50°C / 32 cSt

Pressure drop P-A/B Pressure drop A/B - T

6

RSQ

240


17 361235

LK

47,5

47,5

LB 66

11

4040

52

G 1"

42,3

2425

51 44 48,5

T4

T2

22

44

G 1/2"

G 1/4"PM

G 1"T1

G 3/4"P1

G 1/2"P2

G 1/2"A

G 1/2"B

4852 43 43 43 43 43

L

33

LA

10

196

H8 10 H8

129

53,5

122,5

20

13 12

LK

35,5

47,5

47,5

54,5

M8

(4x)

7575

16

43 48

L

53

124

116

72

121,

5

11

58 43 43 43

115

41

G 3/8"

4448

42,3

TD4G 3/8"

T1G 1/4"

PPM

M6

P1

22

G 3/4"

G 1"T2

48,5

G 3/4"

PM

44

G 1/2"T4

T3

48

PSG 1/4"

200

52

32

20 53

83

217

39

No. of sections

L mm

LK mm

1 143 90

2 186 133

3 229 176

4 272 219

5 315 262

6 358 305

7 401 348

8 444 391

9 487 434

10 530 477

No. of sections

L mm

LK mm

1 149 100

2 192 143

3 235 186

4 278 229

5 321 272

6 364 315

7 407 358

8 450 401

9 493 444

10 536 487

I11D U21B

I21A U21A

Dimensions

RSQ

240

7


12115

47,5

47,5

10,510,5

83,5

84T3

G 3/8"

G 3/8"PPM

2

48

T2

48,5

24

G 1"

T4G 1/2"

T1

P1

4

1

9

5

8

7

6

3

2

4

9

6 7

3 1

285

U21C

Inlet section I11D - dual fl ow rangesThe unique RSQ 240 high – low fl ow property is achieved by the integral switching spool of I11D, which can be elec-trically operated by the use of an E926 valve.

The I11D with its integral Q-function provides by-pass of pump fl ow to tank in idling condition thereby reducing pressure drop and heat generation, as well as accomplis-hing improved control characteristics.

The by-pass fl ow control spool in combination with an el. unloading valve (E926) achieves emergency dump of all pump oil to tank.

I11D houses a small relief valve cartridge TB12 which together with the by-pass fl ow control spool provides the primary relief valve function of the RSQ 240. A choice of different metering orifi ce cartridges are available, deter-mining low fl ow range, infl uencing pressure build-up to suit different applications and constituting fl ow from the high pressure carry-over for downstream services.

I11D when equipped with a pressure reducing cartridge TRA53, provides pilot oil supply for hydraulic and elec-tro-hydraulic proportional remote controlled working sections.

I11D is equipped with a special check valve, FSB4, to cushion the opening of the by-pass control spool thereby eliminating unnecessary pressure peaks.

1. Inlet type D ..................................................................... I01D2. Main relief valve ............................................................ TB123. By-pass fl ow control spool unit .................................... FK4024. Solenoid valve for el. high-low fl ow control .................. E9265. Pressure reducing valve ................................................TRA536. High/low fl ow control spool unit ................................. FV4017. Metering orifi ce cartridge for low fl ow ........................ PF5058. Cushioning check valve ................................................. FSB49. Electrical unloading valve ............................................... E926

Dimensions

8

RSQ

240


T1

PM

P2P1

1

2

3

2

3

1 4

T1

PM

P2P1

3

25

4

1

6

3

2

51

4

Inlet section I21B - single fl ow range and remote controlled

The I21A provides full RSQ 240 Q-function.

When equipped with an el. unloading valve (E926), emer-gency dump is achieved.

The integral TB12 in combination with fl ow control spool FK../TK.. form the primary relief valve function.

A number of by-pass fl ow control spools, with its integral metering orifi ce, are available to suit different system requirements in terms of pressure build-up, to achieve fl ow from the high pressure carry-over and to constitute max available service circuit fl ow by screwing home MF24 metering check valve.

I21A is equipped with a special check valve, FSB5, to cushion the opening of the by-pass control spool thereby eliminating unnecessary pressure peaks.

The properties of the I21B are the same as for I21A, with the addition that it can be equipped with a pressure reducing cartridge (TRA53) providing pilot oil supply for remote control.

Inlet section I21A - single fl ow range and manually operated

1. Inlet type A ..................................................................... I21A2. Main relief valve ............................................................ TB123. By pass fl ow control spool unit .................................... TK5174. Plug .............................................................................PGT02

1. Inlet type B ..................................................................... I21B2. Main relief valve ............................................................ TB123. By-pass fl ow control spool unit .....................................FK5124. Pressure recucing valve ................................................TRA535. Cushioning check valve...................................................FSB56. Plug .............................................................................PGT02

RSQ

240

9


B

3

A

4

5 6

2

7

8

13

2

84

6

15

7

BA

86

7

4 9

3

2

10

5

19

5

6 10

3

81

4

72

With cavities for service port valves.

1. Working section .......................................................... S11B2. Spool control bracket ..................................................M013. Spool4. Low fl ow check valve ................................................ML245. Full fl ow metering check valve .................................MF246. Spool control ................................................................LE117. Port relief/anticavitation valve ........................... TBSD1608. Port relief/anticavitation valve........................... TBSD160

Working section S11B manually operated

With cavities for service port valves and for solenoid ope-rated valves for EHP.

Working section S11C remote controlled

1. Working section ..........................................................S11C2. Solenoid valve EHP, 24 V ............................................ER543. Spool control .............................................................MH024. Spool5. Spool control .............................................................. HP046. Low fl ow check valve ................................................ML247. Full fl ow metering check valve .................................MF248. Solenoid valve EHP, 24 V ............................................ER549. Port relief valve ...................................................... TBD16010. Port relief valve .................................................... TBD160

10

RSQ

240


T4T2

2

1

2 1

T3

1

2

3

PPM T4T2

1 32

Outlet section U21A manually operatedWith cavity for high pressure carry-over plug.

Note that the carry-over fl ow is the fl ow that is regulated into the centre channel i. e. the fl ow determined by the metering orifi ce of the inlet section.

1. Outlet section type A .....................................................U21A2. Plug ............................................................................... P400

Outlet section U21B remote controlled

1. Outlet section type B................................................. U21B2. Pilot pressure valve .............................................. TMB2103. Plug .............................................................................PMS6

For optimal function it is recommended that port T3is directly connected to tank and plug PMS6 fi tt ed in TD4.

With cavity for high pressure carry-over plug.

With port (PPM) for external pilot oil supply/pilot pres-sure gauge.

With port (T3) for external pilot oil drain (provided plug PMS6 fi tted in TD4).

With cross drillings for pilot oil supply to B-side of S11C sections.

RSQ

240

11


2

1

3

T2 PPMT3 T4

1 32

Intermediate outlet allowing dual circuit system. Inten-ded both for manually and remote controlled valves.

With cavity for high pressure carry-over plug.

With port (PPM) for external pilot oil supply/pilot pres-sure gauge.

With port (T3) for external pilot oil drain (provided plug PMS6 fi tted in TD4).

With cross drillings for pilot oil supply to B-side of S11C sections.

Outlet section U21C - Intermediate outlet

1. Outlet section type C .....................................................U21C2. Pilot pressure valve ................................................... TMB2103. Plug .............................................................................. PMS6

12

RSQ

240


DataRated fl ow: ...................................................................40 l/minPower consumption: ..........................................................17 WRated voltage: ........................................................ 12 and 26 VMax voltage variation: ..................................................+/- 10%Duty factor*: ................................................................... 100%Connection: .......................... Hirschmann ISO 4400 DIN 43650Protection class: ................................................................ IP65* Suffi cient cooling must be secured

The unloading valve has manual override.

E912 and E926 has push and twist type pin operation. This pin is sealable.

PE20 is the plug for the cavity.

The HG10 plug is used when the valve is hydraulically remote controlled by a hydraulic servo valve.

Codes

E912 ......................................push and twist type override 12 VE926 ......................................push and twist type override 26 V

Electrical unloading valve and two speed control This electrical unloading valve is a 2-way, normally open, solenoid type cartridge valve. It is an option in all inlet sections.

It is intended for emergency stop and for pressure drop/heat generation reduction.

E926 for two speed function, high/low fl ow E926 for el. unloading/emergency stop

E926 for el. unloading/emergency stop

I11D I21

RSQ

240

13


180

For valves in standard confi guration spool controls are mounted on the A-side of the valve and the lever brackets on the B-side.

The hand lever ME180 is designed to be used in com-bination with spool control MH02, but it is a separate item and must be ordered separately.

ME180 provides manual override for EHP controlled RSQ 240 valves.

Hand lever ME180

Spool control 901Spring centered.

Spool control 1001Detents at positions 1, 2 and 3.

Spool control 1101Spring centering with detent at position 4.

Spool control L61External hydraulic kick-out from inserted spool*.

Spool control HPHydr. proportional. For ex-ternal pilot oil supply.Pilot pressure 6-16 bar Max pilot pressure 25 bar*.

Spool controls - B-side

Bracket.

Bracket M01

Bracket for manual override.

Bracket MH02

Spool control L64External hydraulic kick-out from inserted and extended spool, locking neutral position*.

* Connection 1/4” BSP

Spool control LE11Spool position indicator. Operating range 10-30 V. Output voltage, spool centered : < 1V. External electronics are required.

Spool controls - A-side

14

RSQ

240


Solenoid valve for EHP, ER52/54

ER52/54ER52/54 are 3/2-way electrically operated pressure redu-cing valves used to provide controlled pilot pressure to operate valve spools.

Functional principle ..................PWM (Pulse Width Modulation)Duty factor ..................................................................... 100%Connection........................................ AMP Junior-Power-TimerRecommended PMW frequency .................................... 100 HzProtection class................................................................. IP 65Ambient temperature ........................................ - 30°C-+ 80°C

Note: If used as ”on-off ” it is recommended to limit the current as example by using a coupling resistance. Please contact Nordhydraulic for detailed information.

ER52Rated voltage(+/- 2V) .................................................. 12 V DCStarting current ........................................................... 500 mAFully shifted .................................................................1200 mACoil resistance + 20° .................................................... 5,4 Ohm

ER54Rated voltage (+/- 4V) .................................................. 24 V DCStarting current .............................................................250 mAFully shifted .................................................................. 600 mACoil resistance + 20° ...................................................21,7 Ohm

RSQ

240

15


3634

10

15

20

25

30

35

10 20 30 40 50 60 70 80 90 100 11000

19161412

3933

Reduced fl ow range code 1

Principle spool matrix

Pump fl ow l/min

Ope

n ce

nter

fl ow

l/m

in

A BS

TPPLPL

Flow range, l/min

Function/Type 10-30 30-50 50-70 70-100

Double acting spool / 1 112 114 116 119

Single acting spool/ 2 212 214 216 219

Motor spool / 4 412 414 416 419

Double acting spool with 4th pos. for fl oat / 3

312 314 316 319

First digit in shaded squares represents reduced fl ow range code.Second digit represents full fl ow range code.PF5.. are metering orifi ces of I11D inlet.FK5.. are fl ow control spool ( with integral metering orifi ce ) of I21.. inlets.)

How to choose metering orifi ce: If pump fl ow is 80 l/min, and wanted reduced speed fl ow is approx 15 l/min,then metering orifi ces PF507/FK502 will achieve an open centre fl ow of 14 l/min.

Reduced fl ow range code 3

PF511FK505

PF507PF502PF505FK501

Spools in reduced fl ow code 3 (upper shaded area above) are also avalible. Spools specially developed for truck cranes (also for use in systems with load holding valves), as well as other application adapted spools are available. Contact Nordhydraulic! Recommended low fl ow range: 10- 30 l/min.

SpoolsThe RSQ 240 spools are available in variety of fl ows and styles to accomodate most design requrements. Since the develop-ment of spools is a continous process and all available spools are not described in this data sheet, contact Nordhydraulic for advice on choosing spools in order to optimize your valve confi guration.

16

RSQ

240


I11D

TB12

FK401/402

110 120 130 140603010

P

40

80

120

160

200

240

280

320

360

400(bar)

00 20 40 50 70 80 90 100

Q l/min

I21.. TB12

FK..

Main relief valve

Main relief valve TB12

The bypass fl ow control valve FK.. in combination with the relief valve cartridge TB12 form the pilot operated relief valve function of the inlet sections for the primary circuit.

TB12 is adjustable and sealable.

Setting range: 35 - 350 bar (3,5 - 35 MPa). Setting range step: 5 bar.

RSQ

240

17


4020 300 10

40

0

80

120

160

200

l /min

P (bar)

240

280

50 Q60 00

10

P (bar)

Q l /min

40302010

40

30

20

Service port valves

Port relief valve TBD160

The TBD160 is a differential area, direct acting relief valve, for the secondary circuit.

TBD160 is adjustable and sealable.

Setting ranges for TBD and TBSD160: Setting range: 35 - 350 bar (3,5 - 35,0 MPa). Setting range step: 5 bar.

Port relief and anticavitation valve TBSD160

See TBD160 for functional principle.

TBSD160 is adjustable and sealable.

Anticavitation characteristics TBSD160Relief characteristics TBD/TBSD160

18

RSQ

240


TBS400

l /min

P (bar)

150

300

200

100

0300 50 Q100

P (bar)

15

20

10

1500

5

0 50 100 Q l /min

Service port valves

Port relief and anticavitation valve TBS400Combination of pilot operated relief and anticavitation valve.

TBS400 is adjustable and sealable.

Setting range: 35 - 350 bar (3,5 - 35,0 MPa). Setting range step: 5 bar.

Anticavitation valve SB500

The anticavitation valve service to ensure that, in the event of a lower pressure in the cylinder port than in the tank, oil can be drawn from the system oil tank to the consumer.

RSQ

240

19


Pilot pressure valve TMB210

The cartridge type pilot pressure relief valve TMB210, normally set at min 14 bar, is used in outlet section U21B and U21C to secure available pilot pressure build-up for remote control. Depending on system design this neces-sary starting pressure could also be achieved through downstream arrangements, for example a support leg valve.

TMB210 is adjustable and sealable.

The cartridge type pressure reducing valve TRA53 is used in inlet section I11D and I21B to provide pilot oil supply for remote control.

TRA53 is fi xed set at 24 bar which consequently is the maximum available pressure level in the pilot system.

Pressure reducing valve TRA53

Miscellaneous

20

RSQ

240


For single fl ow range

Single circuit

Manually operated

For dual fl ow range

Single circuit

El. hydr. prop. remote control


Dual circuit

Manually operated

Typical hydraulic circuit diagrams


For systems with variable pump

El. hydr. prop. remote control

Documents

RSQ 240 Series - HYDAC · 2016-04-20 · RSQ 240 is a sectional, parallel circuit valve, designed for system pressures up to 350 bar and pump ﬂ ows up to 140 l/min. It is available